PLT OF SMA SEL TAILWHEEL ACFT TAXIED ACROSS RWY IN FRONT OF ANOTHER ACFT TAKING OFF.

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IN BROAD DAYLIGHT IN THE AFTERNOON; I TAXIED MY CESSNA 180 ACFT TO THE FUEL PUMPS AT W32 FOR FUEL. THE RTE REQUIRED XING RWY 5/23. I STOPPED AND LOOKED BOTH WAYS BEFORE XING. I ESPECIALLY LOOKED TO MY L AS THAT IS THE DIRECTION ANY LNDG TFC WOULD HAVE BEEN COMING FROM. AFTER XING THE RWY AND NEARING THE PUMPS A SMALL VERI-ESE KIT PLANE TAXIED UP ON MY L AND I THOUGHT HE ALSO WAS GOING TO THE PUMPS SO I WAVED HIM ON SINCE I WAS IN NO HURRY. HE DID NOT MOVE SO I CONTINUED TO THE PUMPS. THE PLT OF THE VERI-ESE ACCOSTED ME AND ACCUSED ME OF HAVING CROSSED THE RWY AS HE STARTED HS TKOF. I TOLD HIM THAT IF I HAD DONE SUCH A THING I WAS TERRIBLY SORRY AND APOLOGIZED. I PERSONALLY THINK HE WAS MORE INTERESTED IN IMPRESSING HIS LADY PAX REGARDING THE POSSIBILITY OF AN ACCIDENT THAN ANYTHING ELSE. MOST ACFT BEGIN THEIR TKOF ABOUT 100 FT TO THE L OF WHERE I CROSSED. BEYOND THIS POINT; TO THE L; THE RWY SLOPES DOWN ANOTHER 300 OR 400 FT TO THE END WHERE I PRESUME HE MUST HAVE BEEN. THE VERI-ESE KIT ACFT IS SMALL; STANDS ONLY ABOUT 18 INCHES HIGH IN THE FRONT AND HAS A VERY THIN PROFILE LOOKING FROM THE FRONT. I WOULD SUGGEST THAT SUCH AN ACFT SHOULD OPERATE A STROBE LIGHT FOR BETTER VISIBILITY. FINALLY; I REGRET THIS INCIDENT OCCURRED IF AS ALLEGED. IF HE WAS IN POS OR ROLLING; I SHOULD HAVE SEEN HIM; HOWEVER SINCE I DID NOT SEE THE VERI-ESE I HAVE NO WAY OF KNOWING WHETHER HE STARTED HIS TKOF ROLL BEFORE; DURING OR AFTER I CROSSED THE RWY.